Non-shrink grout is a hydraulic cement

Cement

In the most general sense of the word, a cement is a binder, a substance that sets and hardens independently, and can bind other materials together. The word "cement" traces to the Romans, who used the term opus caementicium to describe masonry resembling modern concrete that was made from crushed...

 grout that produces a big volume that, when hardened under stipulated test conditions, is greater than or equal to the original installed volume; often used as a transfer medium between load-bearing members.

Testing

Test standards used to designate a grout as non-shrink include, but are not limited to:

• C1090-01(2005)e1 Standard Test Method for Measuring Changes in Height of Cylindrical Specimens of Hydraulic-Cement Grout

Typical characteristics

• Often sets rapidly
• Usually a pre-mix product that needs only to be mixed with water
  Water
  Water is a chemical substance with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient conditions, but it often co-exists on Earth with its solid state, ice, and gaseous state . Water also exists in a...
  
  
• Includes ingredients to compensate against cement stone shrinkage
• Use of shrinkage-compensating ingredients can result in volume increase over time.

Typical cementitious materials caveats

Despite the use of expanding or shrinkage-compensating ingredients, users are ordinarily cautioned to avoid environments detrimental to the forming of cement stone. These include but are not limited to the following:

• Avoid high wind across the curing surface.
• Avoid high temperatures during the cure.
• Avoid common cement poisons, such as sulphates, acids, etc.

Failure to follow these precautions can adversely affect the quality of all cementitious products, including

See also

• ASTM International
  ASTM International
  ASTM International, known until 2001 as the American Society for Testing and Materials , is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services...
  
  
• Canadian Standards Association
  Canadian Standards Association
  The Canadian Standards Association, also known as the CSA, is a not-for-profit Standards organization with the stated aim of developing standards for use in 57 different areas of specialisation...
  
  
• Deutsches Institut für Normung
  Deutsches Institut für Normung
  is the German national organization for standardization and is that country's ISO member body. DIN is a Registered German Association headquartered in Berlin...